EP 0571013 A2 19931124 - Retouching photographic images.
Title (en)
Retouching photographic images.
Title (de)
Retusche von photographischen Bildern.
Title (fr)
Retouche d'images photographiques.
Publication
Application
Priority
US 87247392 A 19920423
Abstract (en)
There are described a method for retouching photographic images, compositions adapted for such retouching, and photographic elements containing dye-forming couplers that yield dye images that particularly lend themselves to retouching by this method. The method comprises contacting a photographic element containing a dye image with a defined retouching composition to solubilize and remove selected areas or amounts of dye. The composition comprises an aqueous basic solution of a dinucleophile and a water-soluble organic co-solvent The preferred photographic element for application of this retouching method comprises a dye image formed from a pyrazoloazole magenta dye forming coupler having a cleavable ballast group joined to the remainder of the molecule by one or two electrophilic cleavage groups.
IPC 1-7
IPC 8 full level
G03C 7/18 (2006.01); G03C 7/30 (2006.01); G03C 7/32 (2006.01); G03C 7/38 (2006.01); G03C 11/00 (2006.01); G03C 11/04 (2006.01); G03C 11/18 (2006.01)
CPC (source: EP US)
G03C 7/3835 (2013.01 - EP US); G03C 11/04 (2013.01 - EP US); Y10S 430/144 (2013.01 - EP US); Y10S 430/159 (2013.01 - EP US)
Designated contracting state (EPC)
BE CH DE FR GB IT LI NL
DOCDB simple family (publication)
EP 0571013 A2 19931124; EP 0571013 A3 19950201; JP 3229426 B2 20011119; JP H0619082 A 19940128; US 5296337 A 19940322
DOCDB simple family (application)
EP 93201160 A 19930421; JP 9587893 A 19930422; US 87247392 A 19920423